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利用过硫酸铵-亚硫酸氢钠(APS-RH)引发体系,研究了聚合反应的温度、丙烯酰胺(AM)对氯化二甲基二烯丙基铵(DMDAAC)的物质的量比等因素以及几种不同的氧化-还原体系对DMDAAC-AM共聚反应规律的影响。在w(DMDAAC+AM)=30%;w(APS)=0.01%时,适宜的反应条件为:n(AM)∶n(DMDAAC)=4∶1,APS对RH的物质的量比为1∶1,30℃下共聚3 h。常见的氧化-还原引发体系对DMDAAC-AM共聚反应规律的影响差别不大,共聚物的产品收率、阳离子度和[η]之间存在一定的制约关系。
Using ammonium persulfate - sodium bisulfite (APS-RH) initiator system, the polymerization temperature, the ratio of acrylamide (AM) to dimethyl diallyl ammonium chloride (DMDAAC) And the effects of several different oxidation-reduction systems on the DMDAAC-AM copolymerization. The optimal reaction conditions are as follows: n (AM): n (DMDAAC) = 4:1, the mass ratio of APS to RH is 1 at w (DMDAAC + AM) = 30% : 1, 30 ℃ for 3 h. The common oxidation-reduction initiation system has little difference on the DMDAAC-AM copolymerization law. There is a certain restraint relationship between the copolymer’s product yield, cationicity and [η].